or subsequent offenses

second or subsequent offenses Sec. 1012. (a) Any person convicted of any offense under this part is, if the offense is a second or subsequent offense, punishable by a term of imprisonment twice that otherwise authorized, by twice the fine otherwise authorized, or by both. If the conviction is for an offense84 Stat. 1291 punishable under section 1010(b), and if it is the offender’s second or subsequent offense, the court shall impose, in addition to any term of imprisonment and fine, twice the special parole term otherwise authorized. (b) For purposes of this section, a person shall be considered convicted of a second or subsequent offense if, prior to the commission of such offense, one or more prior convictions of him for a felony under any provision of this title or title II or other law of the United States relating to narcotic drugs, marihuana, or depressant or stimulant drugs, nave become final. (c) Section 411 shall apply with respect to any proceeding to sentence a person under this section.